welch



(No Model.) J P WELGH 3 Sheets-Sheet 1. WOOD PLANING- MACHINE.

Patented Dec. 4, 1888. M

N. PETERS. Fhctwuumgmnhur. Washington. D, C.

(No-Model.) 3 Sheets-Sheet 3.

J. 1?. WELGH.

WOOD PLANING MACHINE.

No. 393,948. 8 v Patented D0084, 1888.

WZfnawes; I v Invenfvr.

u. PETERE mawmm m mr. wznhingtm. ac.

UNITED STATES PATENT OFFICE.

JAMES F. IVELCH, OF BROOKLYN, NEW YORK, ASSIGNOR TO THE GLEN COVEMACHINE COMPANY, (LIMITED) OF SAME PLACE.

WOOD=PLAN|NG MACHINE.

SPECIFICATION forming part of Letters Patent No. 393,948, dated December4, 1888.

Application filed July 3, 1888- Serial No. 278,960%- (No model.)

To all whom it may concern: of a lower roll, C, and an upper roll, C.The Be it known that I, JAMES F. WVELOH, of two pairs of feed-rolls arerepresented upon Brooklyn, (Green Point,) in the county of the mainframe A, and the pair of delivery- Kings and State of New York, haveinvented rolls are represented upon the supplemental a new and usefulImprovement in VVoodframe, though for the purposes of the present 55Planing Machines, of which the following is invention all the feed anddelivery rolls might a specification, reference being had to the be uponone main frame. accompanying drawings. The feed and delivery rolls areall repre- This invention, although generally applicasented as drivenfrom a shaft, E, which works ble to wood-planing machines, isparticularly in bearings in the main frame, which car- 60 useful in theclass of wood-planing machines ries a pinion, e, which gears into awheel, which are termed surfacing-machines. e, which latter gears intoanother wheel, 6 The improvement consists in means, herewhich in turntransmits motion to a wheel, inafter described and claimed, forsupporting c and the wheel 6 is in gear with a large and adjustingupward and downward the top wheel, 6, on the lower delivery-roll, C. 65roll of each pair of feed-rolls in the machine, The lower delivery-rollis jourualed in bearand in the gearing, hereinafter described and ings0; but the bearings c of the upper declaimed, for imparting motion toeach upper livery-roll, C, are vertically movable, and are roll,notwithstanding its upward and downconnected by rods c with arms uponthe ward movement produced either by adjustrock-shaft 0 working in fixedbearings. Con- 7o ment or by rising as the lumber passes unsequently asthe upper roll, C', rises and falls der it. it is by the rock-shaft cconstantly 1nain- In the accompanying drawings, Figure l is tained inparallel position with the lower dea side elevation of asurfacing-machine emlivery-roll, C. The boxes 0' here constitute bodyingmy invention. Fig. 2 is a plan of the supports for the upperdelivery-roll, C, 75 the same. Fig. 3 is asectional elevation upon andare provided each with a socket, 0 about the plane indicated by thedotted line These sockets c of the boxes 0' atv opposite .00 as, Fig. 1.Fig. A is a horizontal section of ends of the roll, respectively,receive through two rock-shafts with which the upper feedthemcylindrical rods 0 0 These rods are rolls of two pairs are connected, aswill be supported at their lower ends in bearings c 80 hereinafterdescribed. and at their upper ends are supported in Similar letters ofreference designate correbearings upon standards C erected upon spondingparts in all the figures. the framing. A designates the main frame ofthe ma- As planing-machines have ordinarily been 3 5 chine. B Bdesignate the cutter-heads, and C constructed, the boxes or supports forthe up- 85 C designate the feed and delivery rolls. The per feed-rollare guided directly upon the upper cutter-head, B, has its journal 6suproll-stands; but in carrying out my invention ported in bearings 1),adjustable upward and these boxes or supports are preferably guideddownward upon standards A, erected upon and sustained in position solelyby the vertithe main frame. The lower cutter-head, B, cal rods 0 0 Therod 0 which is shown only 90 is represented as supported in bearings 19in in Fi 3, is simply a smooth cylindric post,

a supplemental end frame, A but this supupon which the socket c on thebox 0 at that plemental end frame constitutes no part of side of themachine slides; but the rod 0 at the present invention, and for thepurpose of the opposite side of the machine consists of a this inventionit is immaterial whether the screw, and the socket c, which receivesthat 5 bearings b of the lower cutter-head, B, are rod, forms a nutfitting the thread of the upon the main frame or upon a supplementalscrew. By means of a hand-crank applied to frame. the upper end, 0 ofthe screw-threaded rod Two pairs of feed-rolls are represented and 0which is squared for that purpose, the

one pair of delivery-rolls, each'pair consisting screw 0 may be turnedto raise and lower the loo Mum- .1 i

box with which it engages, and inasmuch as the boxes 0 at opposite sidesof the machine are connected by the rock-shaft c and its arms and rods(3 c" the two boxes c at opposite 5 ends of the roll will be raised andlowered in unison and the upper delivery-roll, C, will always bemaintained in position parallel with the lower roll, C.

The upper delivery-roll, C, is weighted by means of a lever, c, which isfulcrumed at one end in a hanger, 0" depending from that part of theframe in which the delivm'y-rolls are arranged. The said lever rests ina shackle or loop, c supported by the lower end of the screw-threadcdrod c. This weighted lever c extends transversely of the machine, and

is shown in end view in Fig. 1 and in part in the plan view in Fig. 2.The weight which is thus applied through the screw 11 to one of theboxes c is through the connection of the two boxes at opposite ends ofthe roll with a rock-shaft, c, clearly applied to the other end of theroll, and when lumber passes u'nderthe upper roll, C, it will riseequally at both ends,

and will lift the screw c and the weight applied thereto. Upon the screw0 is a collar,

( which, by being supported upon the hearing c prevents the downwardmovement of the box c, which is titted upon it, and therefore preventsthe upper roll, C, from dropping down.

i I have described how the motion is transmitted to the lowerdelivery-roll, C, and in order to transmit motion therefrom to the 3 5upper roll, C, I provide expansion-gearsff,

which are in gear, respectively, with gearwheelsf f upon the lower andupper rolls. The expansion-gearf is journaled in the fixed bearingf, andthe gear j", which transmits motion from the wheel f to the wheclf, is

supported by the swinging links f'". This system of gears alwaystransmits motion to the upper roll, C, whatever be its verticalposition.

At the front end of the machine, as shown in Fig. 1, are twocross-shafts, F F, which are mounted in adjustable bearings'j and onwhich are pulleys f f. From these pulleys f f motion is transmitted,respectively, to the upper cutter-head and the lower cutterhead, B, bybeltsf"f As Ihave before stated, upon the main frame A are hererepresented two pairs of feed-rolls, each consisting of a lower roll, 0,

and an upper roll, C. Each of the lower feed-rolls, C, is mounted instationary bearings c, and each of the upper feed-rolls, C, is what isusually termed a broken roll, or, in other words, it is formed of twosections ar- 6o ranged end to end, as shown in Fig. 3. The boxes c,which support the sections of the upper roll, C, are not directlysupported upon rods or cylindrie bars, as shown in the case of thedelivery-rolls C C, which are mounted upon the supplemental frame A butthe see tions C of each upper feed-roll,wl 1ich is upon the main frameA, are supported in an upper roll-frame, C.

The way in which the two roll-sections of each upper roll, C, aresupported in a frame, C,whcrein they have a limited vertical movementindependently of each other, I do not claim as my invention, as suchfeatures form the subject of an application forIiettcrs Patent tiled byA. 13. Hutchinson and E. F. Autenrieth on January 30, 1888, and theserial number of which is No. 262,39U.

Between the two pairs of feed-rolls C C,

and upon each main side frame, A, is a stand ard, C, and the upperrollframes, C", are upon opposite sides of thesestandards. The boxes 1:of the sections of the upper rolls, C, having a limited verticalmovement in the rollframes C, are loaded by springs, as fully describedin the aforesaid application of Hutchinson and Autenrieth. The upperroll-frames, C, may be considered as the supports for the upper rolls,and each frame C has at opposite ends sockets The sockets at one side ofthe machine I slide upon cylindric posts or rods (-7, and the sockets atthe opposite side of the machine, which is represented in Fig. 1, formnuts, which receive and fit vertical scrcw-threaded rods c. The rods 0 care fitted in lower bearings, c and in upper bearings, c, which arecarried by the standards C. The screws 0 are provided with collars c,which form stops by striking against the hearings to arrest the downwardmovement of the roll-frames C and when the upper feed-rolls, C, andtheir frames C are raised by the lumber the sock ets c on the saidframes at one side of the machine rise upon their guiding-rods clwhileat the oppositeside of the machine the screws c are lifted in theirbearings. The upper roll-frames, C, are horizontally sustained andguided solely by the rods 0 which lit the sockets c at opposite endsthereof, and each upper roll-frame is connected at opposite ends by rods(5 with arms 0 upon two rock-shafts, c 0*. These rock-shafts have acommon center, as best shown in Fig. 4, and the shaft c is tubular andreceives the rock shaft c through it. The rock-sha ft; c" is supportedat its ends in bearings 8 upon the frame A, and close to these hearingsare attached arms which are connected by the rods c with the roll-framewhich is at the right hand of Fig. 1. I

The tubular rock-shaf t 11* is loose upon the inner rock-shaft, c, andfills up the space between its arms, and this tubular rock-shaft 0* hasat opposite ends the arms c, which are connected by rods 1: with theupper rollframe, C, at the left hand of Fig. 1. It; will be understoodthat by the connection of each upper roll-frame, C", at its oppositeends'with a rock-shaft, the two ends of that frame are caused to riseand fall in unison, and consequently the upper roll, C, is normallymaintain in parallelism with the lower roll, C.

The lower ends of the two screws which are upon the main frame A,areconnected by a yoke, 0 in whiclrthey are swiveled, so as to turn freely,and a weighted lever, c ,is ful-' as before stated, to the .wheel 6, andthis wheel 6 gears into a large wheel, 6 upon one of the lowerfeed-rolls, C. The two lower feedrolls, 0, are geared together by wheels6 upon their axes and an intermediate wheel, 6 as shown by dotted linesin Fig. 1. The sections of the upper feed-rolls, (-3, have upon themgear-wheels c and the sections of the two upper rolls are gearedtogether by an intermediate shaft, 6 having wheels e which gear into thespur-wheels e on opposite sides. This shaft e is supported in bearingse, which extend laterally inward from one of the upper roll-frames, Cand consequently as the upper roll-frames are raised or lowered byhandles applied to the square ends of the screws 0 the shaft a will alsobe raised or lowered. The shaft e is received in a slot, e formed in oneof the uprights or standards C as shown by dotted lines in Fig. 1, andmotion is transmitted from one of the lower feed-rolls, C, to the upperfeed-rolls, O, by expansion-gearing, which I will now de} scribe.

Upon one of the lower feed-rolls, C, is a geai wheel, 8 and upon theshaft 6 is a gearwheel, 6 \Vith both these wheels engages anexpansion-gear, 6 which is supported by swinging links 6 As the shaft 6with the wheel a upon it, rises and falls, the expansiongear 6 ismaintained in constant engagement with it and with the wheel e on thelower feed-roll, and hence motion is continuously imparted to the shaft6 and to the two upper rolls, C.

I do not here claim the arrangement of the sections of the two upperrolls, 0', those of each roll in a separate upper roll-frame, C and theintermediate shaft, e which is geared with both sections of each upperroll, as such subject-matter is included in the aforesaid application ofHutchinson and Autenreith; but I do desire to include in my invention,broadly, the supports for the upper feed-rolls for the upperdelivery-roll, having sockets which are fitted upon and solely supportedand guided by rods at opposite sides of the machine, one of said rods ofeach pair being a screw and fitting a screw-thread in the socket inwhich it is received; and I also desire to include in my invention thecombinatiomwith the vertically-movable supports, of the upperroll-shafts of the two pairs of two rockshafts, one being hollow andsurrounding the other and having arms which are connected by rods withthe upper roll-supports of the two pairs, whether these roll-supportsconsist of vertically-movable frames, as C which support each the twosections of an upper feed-roll, or whether they consist of the movableboxes of upper feed-rolls, which are not sectioned or broken.

WVhat I claim as my invention, and desire to secure by Letters Patent,is

1. The combination, in a wood-planing machine, of two pairs offeed-rolls, the lower rolls of the two pairs being mounted in stationaryboxes and the upper rolls in vertically-movable supports, of tworock-shafts, one being hollow and surrounding the other, arms on saidrock-shafts, and rods whereby the upper roll-supports of the two pairsare connected, respectively, with the arms on the two rockshafts,substantially as herein described.

2. The combination, with a cutter-head, of a pair of feed-rolls, thelower roll being mounted in stationary bearings and the upper roll beingjournaled in supports connected at opposite ends of the roll by rodswith the arms of a rock-shaft, and two guide-rods at opposite sides ofthe machine fitting sockets upon said upper-roll supports, whereby saidsupports are guided and solely sustained in all directions horizontally,one of said two rods being a screw and fitting a screw-thread in the oneof said sockets in which it is received, substantially as described.

3. The combination, with two pairs of upper and lower rolls, of gearingconnecting together the two lower rolls, a gear-wheel intermediatebetween the two upper rolls for driving both, a second wheel concentricand connected with said intermediate wheel, and an expansion-gearconnecting the said second gear-wheel with a wheel on one of the lowerrolls and j ournaled in swinging links, so as to transmit motion to theupper rolls whatever be their vertical position, substantially as hereindescribed.

JAMES F. lVELCH. \Vitnesses:

FREDK. HAYNES, J OSEPH W. ROE.

IIO

